thanks, you have now influenced me to believe that its a good few of the lower harmonics which are reduced by "dithering" the switching frequency, but the higher harmonics, the harmonics involved with the switching edges, which are the ones which cause most emc problem, I still don't think are significantly affected by "dithering" the switching frequency.
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thanks, you have now influenced me to believe that its a good few of the lower harmonics which are reduced by "dithering" the switching frequency, but the higher harmonics, the harmonics involved with the switching edges, which are the ones which cause most emc problem, I still don't think are significantly affected by "dithering" the switching frequency.